CN108361926B - Air conditioner control method based on temperature and cold feeling and air conditioner - Google Patents
Air conditioner control method based on temperature and cold feeling and air conditioner Download PDFInfo
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- CN108361926B CN108361926B CN201810077978.6A CN201810077978A CN108361926B CN 108361926 B CN108361926 B CN 108361926B CN 201810077978 A CN201810077978 A CN 201810077978A CN 108361926 B CN108361926 B CN 108361926B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The air conditioner control method based on the temperature and the cold feeling comprises the following steps: detecting the distance between the heat source and the air conditioner in real time, determining the wind speed corresponding to the distance according to the corresponding relation between the distance and the wind speed, and taking the wind speed as the real-time wind speed; detecting the return air temperature and the outlet air temperature in real time, and calculating the real-time air supply temperature difference; when the real-time air supply temperature difference is larger than or equal to the temperature difference set value, determining the operation frequency; setting sampling periods, and generating a corresponding wind speed correction value and/or a frequency correction value according to the distance in each sampling period; and starting to control the compressor and the indoor fan to operate by the sum of the real-time wind speed and the wind speed correction value generated in the previous sampling period and/or the sum of the operation frequency and the frequency correction value in the next sampling period until the subjective temperature and cold feeling level is a comfortable level, and the compressor operates at a low frequency. An air conditioner is also disclosed. The invention has the advantage of high intelligent degree.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to an air conditioner control method based on temperature and cold feeling and an air conditioner.
Background
The air conditioner is used for refrigerating or dehumidifying in summer and heating in winter, and can adjust the indoor temperature, so that an air-conditioned room can reach a comfortable environment which is warm in winter and cool in summer. Air conditioner manufacturers are constantly dedicated to research and develop new technical schemes while the air conditioner ensures the comfort of air-conditioned rooms, so that the energy consumption of the air conditioner is reduced, and the use efficiency of the air conditioner is improved.
For example, in the chinese patent application "method and apparatus for controlling air conditioning refrigeration based on distance" published by the applicant in the future, application No. 201611087736.2 discloses a technical scheme: the method comprises the steps that an air conditioner operates to obtain real-time indoor environment temperature and set target temperature, the temperature difference between the real-time indoor environment temperature and the set target temperature is calculated to serve as real-time temperature difference, PID operation is conducted according to the real-time temperature difference, and first frequency is obtained; detecting a heat source in a room where the air conditioner is located in real time, determining a real-time distance between the heat source and the air conditioner, determining a wind speed corresponding to the real-time distance according to a known corresponding relation between the distance and the wind speed and using the wind speed as a real-time wind speed, and acquiring a frequency corresponding to the real-time wind speed according to the known corresponding relation between the wind speed and the frequency and using the frequency as a second frequency; comparing the real-time indoor environment temperature with a set comfortable temperature; and if the real-time indoor environment temperature is not less than the set comfortable temperature, selecting the smaller value of the first frequency and the second frequency to control the operation of the compressor of the air conditioner. If the real-time indoor environment temperature is lower than the set comfortable temperature, acquiring the real-time coil temperature and the coil target temperature of the air-conditioning evaporator, calculating the temperature difference between the real-time coil temperature and the coil target temperature to serve as the real-time coil temperature difference, performing coil temperature PID operation according to the real-time coil temperature difference to obtain a third frequency, and selecting the smaller value of the first frequency, the second frequency and the third frequency to control the operation of the compressor; and when the indoor target temperature is lower than the preset temperature, the target temperature of the coil is lower than the preset temperature. "
It is apparent that, in the above control method, the real-time wind speed is determined according to the distance between the heat source and the air conditioner, and the frequency is determined according to one of the real-time temperature difference, the correspondence between the wind speed and the frequency, and the indoor ambient temperature and the set comfort temperature. Neither the real-time wind speed nor the frequency adjustment takes the subjective comfort of the user into account, and the control precision is relatively low.
Disclosure of Invention
The invention provides an air conditioner control method based on temperature and cold feeling, which is used for adjusting air parameters of an air-conditioning room according to subjective comfort of people, the distance between people and an air conditioner and the relation between the ambient temperature and the air outlet temperature to form an air-conditioning room environment comfortable for people.
A control method of an air conditioner based on temperature and cold feeling, wherein the air conditioner works in a cooling mode, and the control method comprises the following steps:
detecting subjective temperature and cold feeling of a heat source in an air-conditioning room in real time, and if the grade of the subjective temperature and cold feeling is not lower than the heat grade, executing the following control strategy:
detecting the distance between the heat source and the air conditioner in real time, and determining the wind speed corresponding to the distance according to the corresponding relation between the distance and the wind speed to be used as the real-time wind speed;
detecting the return air temperature of the air return inlet of the air conditioner and the outlet air temperature of the air outlet in real time, and calculating the temperature difference between the return air temperature and the outlet air temperature as the real-time air supply temperature difference; when the real-time air supply temperature difference is larger than or equal to a temperature difference set value, determining the operation frequency according to the relationship between the temperature difference set value and the frequency;
setting sampling periods, and generating a corresponding wind speed correction value and/or a frequency correction value according to the distance in each sampling period; and starting to control the compressor and the indoor fan to operate according to the sum of the real-time wind speed and the wind speed correction value generated in the last sampling period and/or the sum of the operation frequency and the frequency correction value in the next sampling period until the subjective temperature and cold feeling level is a comfortable level, and the compressor operates at a low frequency.
Further, if the distance belongs to a first distance setting interval, determining a first set wind speed according to the corresponding relation between the distance and the wind speed, wherein the first set wind speed is a real-time wind speed;
if the distance belongs to a second distance setting interval, determining a second set wind speed according to the corresponding relation between the distance and the wind speed, wherein the second set wind speed is a real-time wind speed;
if the distance belongs to a third distance setting interval, determining a third set wind speed according to the corresponding relation between the distance and the wind speed, wherein the third set wind speed is a real-time wind speed;
the upper limit threshold values of the first distance setting interval, the second distance setting interval and the third distance setting interval are sequentially increased in size, and the first set wind speed, the second set wind speed and the third set wind speed are sequentially increased in size.
Furthermore, if the distance belongs to a first distance setting interval, whether the real-time air supply temperature difference is larger than or equal to a first temperature difference setting value is judged, if the real-time air supply temperature difference is larger than or equal to the first temperature difference setting value, a corresponding frequency correction value is generated in each sampling period, and the compressor is controlled to operate by the sum of the target frequency and the frequency correction value in the next sampling period.
Furthermore, if the distance belongs to a second distance setting interval, whether the real-time air supply temperature difference is larger than or equal to a second temperature difference set value is judged, if the real-time air supply temperature difference is larger than or equal to the second temperature difference set value, a corresponding air speed correction value is generated in each sampling period, and the indoor fan is controlled to operate by the sum of the second set air speed and the air speed correction value in the next sampling period.
Furthermore, if the distance belongs to a third distance setting interval, whether the real-time air supply temperature difference is larger than or equal to a third temperature difference setting value is judged, if the real-time air supply temperature difference is larger than or equal to the third temperature difference setting value, a corresponding frequency correction value and a corresponding air speed correction value are generated in each sampling period, the compressor is controlled to operate by the sum of the target frequency and the frequency correction value in the next sampling period, and the indoor fan is controlled to operate by the sum of the third set air speed and the third air speed correction value.
Preferably, the first temperature difference set value, the second temperature difference set value and the third temperature difference set value are sequentially increased.
Preferably, the coding ordinal number of the sampling period is set, the wind speed correction value in each sampling period is the product of the wind speed correction factor and the coding ordinal number of the corresponding sampling period, and the frequency correction value in each sampling period is the product of the frequency correction factor and the coding ordinal number of the corresponding sampling period, wherein the coding ordinal number of the first sampling period is 0.
Preferably, the first distance setting section is (0, 1 m), the second distance setting section is (1, 2 m), and the third distance setting section is (2, 3 m).
Preferably, the first temperature difference set value is 10 degrees centigrade, the second temperature difference set value is 12 degrees centigrade, and the third temperature difference set value is 13 degrees centigrade.
The air conditioner control method based on temperature and cold feeling disclosed by the invention has the advantages that when the subjective temperature and cold feeling grade of a user in an air-conditioned room is 'hot' or 'very hot', firstly, the wind speed is limited in a reasonable interval according to the distance between a user and the air conditioner, thereby avoiding that a large amount of cold wind is blown to the user, the temperature and cold feeling of the user is changed from a 'hot' grade to a 'cold' grade to cause overshoot, secondly, when the ambient temperature in the air conditioning room is higher or the outlet air temperature is lower, the running frequency of the compressor is adjusted to the ideal frequency, and in a sampling period or a plurality of continuous sampling periods, the wind speed or the compressor frequency is corrected and suppressed in advance during the control, so that during the temperature drop in the air-conditioned room, the subjective temperature and coldness feeling of the user can change in a gradually stable trend and keep at a 'comfortable' level, so that the user feels comfortable every moment.
Meanwhile, the air conditioner adopts an air conditioner control method based on temperature and cold feeling. The air conditioner works in a cooling mode, and the control method comprises the following steps:
detecting subjective temperature and cold feeling of a heat source in an air-conditioning room in real time, and if the grade of the subjective temperature and cold feeling is not lower than the heat grade, executing the following control strategy:
detecting the distance between the heat source and the air conditioner in real time, and determining the wind speed corresponding to the distance according to the corresponding relation between the distance and the wind speed to be used as the real-time wind speed;
detecting the return air temperature of the air return inlet of the air conditioner and the outlet air temperature of the air outlet in real time, and calculating the temperature difference between the return air temperature and the outlet air temperature as the real-time air supply temperature difference; when the real-time air supply temperature difference is larger than or equal to a temperature difference set value, determining the operation frequency according to the relationship between the temperature difference set value and the frequency;
setting sampling periods, and generating a corresponding wind speed correction value and/or a frequency correction value according to the distance in each sampling period; and starting to control the compressor and the indoor fan to operate according to the sum of the real-time wind speed and the wind speed correction value generated in the last sampling period and/or the sum of the operation frequency and the frequency correction value in the next sampling period until the subjective temperature and cold feeling level is a comfortable level, and the compressor operates at a low frequency.
The air conditioner disclosed by the invention has the advantages of high comfort degree and good intelligent degree.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flowchart illustrating an embodiment of a method for controlling an air conditioner based on temperature and humidity according to the present invention;
FIG. 2 is a flow chart illustrating a first preferred embodiment of a method for controlling an air conditioner based on temperature and cold feeling according to the present invention;
FIG. 3 is a flow chart of a second preferred embodiment of the method for controlling an air conditioner based on temperature and cold feeling according to the present invention;
fig. 4 is a flowchart illustrating a method for controlling an air conditioner based on thermal sensation according to a third preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following disclosure provides many different embodiments, or examples, for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the structure of a first feature described below as "on" a second feature may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact.
In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
The present invention discloses a method for controlling an air conditioner based on temperature and cold feeling, which is described in detail below with reference to the accompanying drawings. In the control method disclosed in the present embodiment, the air conditioner operates in a cooling mode. Preferably, the air conditioner operates according to a control algorithm as disclosed in the background.
As shown in fig. 1, the air conditioner control method based on the temperature and the cold feeling comprises the following steps:
and step S101, detecting subjective temperature and coldness of a heat source in an air-conditioning room in real time. The subjective temperature and coldness sensation is obtained by detecting the absolute temperature of a heat source through an infrared sensor and combining the heat dissipation capacity of the body surface of the human body obtained through the existing algorithm. The larger the heat dissipation of the human body, the colder the human feels, and the smaller the heat dissipation of the human body, the hotter the human feels. In the prior art, subjective feelings of coolness are generally classified into five grades, i.e., "very cold, comfortable, hot, very hot", or seven grades, i.e., "very cold, cool, comfortable, warm, hot, very hot", according to the calculation results. The absolute temperature of the heat source is detected by using the infrared sensor, and the grade of subjective temperature and coldness is judged, an algorithm disclosed in the prior art is adopted, which is not the protection key point of the invention and is not repeated.
And step S102, judging the subjective temperature and coldness level. If the subjective level of warmth and coldness is not lower than the hot level, indicating that the person feels hot, the following control strategy is executed.
And step S103, detecting the distance between the heat source and the air conditioner in real time. The distance detection is also obtained by an infrared sensor in combination with existing algorithms.
In order to make the user feel the temperature at every moment comfortably, and simultaneously play a role of cooling, the control method disclosed in this embodiment further includes the following steps:
and S104, determining the wind speed corresponding to the distance according to the corresponding relation between the distance and the wind speed, and taking the wind speed as the real-time wind speed. The phenomenon that the subjective temperature and cold feeling grade of a user jumps from a hot grade to a cold grade or below in a short time due to stimulation caused by a large amount of air outlet with too low temperature in the process of refrigerating operation is avoided. In a refrigeration environment, once an overshoot phenomenon from heat to cold occurs, it is difficult to automatically adjust to return to a comfortable state.
In the present embodiment, it is preferable to set three distance setting sections according to the area of the air-conditioned room, according to the common activity area of the person in the air-conditioned room.
Specifically, if the distance between the heat source, namely the user, and the air conditioner belongs to a first distance setting interval, determining a first set wind speed according to the relation between the distance and the wind speed, determining the first set wind speed as a real-time wind speed, and controlling the operation of the fan of the indoor unit of the air conditioner. And if the heat source, namely the distance between the user and the air conditioner belongs to a second distance setting interval, determining a second set wind speed according to the relation between the distance and the wind speed, determining the second set wind speed as a real-time wind speed, and controlling the operation of the fan of the indoor unit of the air conditioner. And if the heat source, namely the distance between the user and the air conditioner belongs to a third distance setting interval, determining a third set wind speed according to the relation between the distance and the wind speed, determining the third set wind speed as a real-time wind speed, and controlling the operation of the fan of the indoor unit of the air conditioner. Considering the relation between the air outlet temperature and the body surface temperature, the upper limit threshold values of the first distance interval, the second distance interval and the third distance interval are sequentially increased in an increasing manner, and the first set air speed, the second set air speed and the third set air speed are sequentially increased in an increasing manner. The area of a common air-conditioning room is less than or equal to 30 square meters, therefore, preferably, the first distance setting interval is set to (0, 1 m), the second distance setting interval is set to (1, 2 m), the third distance setting interval is set to (2, 3 m), the first set wind speed corresponds to a low wind gear or a breeze gear, the second set wind speed corresponds to a medium wind gear, and the third set wind speed corresponds to a high wind gear, so that a large amount of cold wind is prevented from being blown to the body surface of a user in a short distance.
And S105, further considering the influence of the air outlet temperature on the environment temperature and the human body surface temperature and considering the requirement of a refrigeration effect, detecting the return air temperature of the air return inlet of the air conditioner and the air outlet temperature of the air outlet in real time, and calculating the temperature difference between the return air temperature and the air outlet temperature to serve as the real-time air supply temperature difference.
And S106, judging whether the real-time air supply temperature difference is larger than or equal to a temperature difference set value or not. The temperature difference set value is a temperature point obtained by a large number of air conditioner operation simulation experiments under the theoretical guidance of research personnel, and the ideal frequency corresponding to the temperature point is calculated at the same time. The return air temperature at the return air inlet of the air conditioner can be equal to the indoor ambient temperature. When the real-time air supply temperature difference is larger than or equal to the temperature difference set value, the indoor environment temperature is higher or the air supply temperature is lower.
As shown in steps S107 to S111, after the air conditioner is operated with the ideal frequency as the operation frequency, a sampling period is set. The sampling period begins and the compressor is run at the desired frequency. And generating a wind speed correction value or/and a frequency correction value according to the variation trend of the indoor temperature. And when the sampling period is finished, judging whether the subjective temperature and cold feeling grade is a 'comfortable' grade or not.
If the determination result is still at the "hot" or "very hot" level, the sampling period is started again, and the compressor controls the operation of the compressor and the indoor fan by the sum of the real-time wind speed and the wind speed correction value generated at the previous sampling period and/or the sum of the operation frequency and the frequency correction value, as shown in steps S112 and S114. If it is the "comfort" level, the above control process is exited as by step S113, and the compressor is operated at a low frequency.
As shown in steps S115 to 117, in the sampling period, the corresponding wind speed correction value and/or frequency correction value is also generated according to the distance. And executing a circulating program until the sampling period is finished, judging that the result is a 'comfortable' grade, exiting the control process, and operating the compressor according to the low frequency.
With the control method disclosed in the above embodiment, when the subjective level of the sensation of warmth and coldness of the user in the air-conditioned room is "hot" or "very hot", firstly, the wind speed is limited in a reasonable interval according to the distance between a user and the air conditioner, thereby avoiding that a large amount of cold wind is blown to the user, the temperature and cold feeling of the user is changed from a 'hot' grade to a 'cold' grade to cause overshoot, secondly, when the ambient temperature in the air conditioning room is higher or the outlet air temperature is lower, the running frequency of the compressor is adjusted to the ideal frequency, and in a sampling period or a plurality of continuous sampling periods, the wind speed or the compressor frequency is corrected and suppressed in advance during the control, so that during the temperature drop in the air-conditioned room, the subjective temperature and coldness feeling of the user can change in a gradually stable trend and keep at a 'comfortable' level, so that the user feels comfortable every moment.
When the user is far from the air conditioner, the possibility of an overshoot condition is generally low. When the air conditioner is close to the air conditioner, the possibility of occurrence of overshoot is high. Furthermore, a temperature difference set value corresponding to the distance between the user and the air conditioner is preferably generated according to the distance between the user and the air conditioner, and when the distance and the real-time air supply temperature difference both meet the conditions, a more accurate control strategy is executed.
Specifically, as shown in steps S201 to S204 in fig. 2, if the distance belongs to the first distance setting interval, it is determined whether the real-time air supply temperature difference is greater than or equal to the first temperature difference setting value. And if the real-time air supply temperature difference is larger than or equal to the first temperature difference set value, generating a corresponding frequency correction value in each sampling period, and starting to control the compressor to operate by the sum of the operation frequency and the frequency correction value in the next sampling period.
As shown in steps S301 to S304 in fig. 3, if the distance belongs to a second distance setting interval, it is determined whether the real-time air supply temperature difference is greater than or equal to a second temperature difference setting value, and if the real-time air supply temperature difference is greater than or equal to the second temperature difference setting value, a corresponding air speed correction value is generated in each sampling period, and the indoor fan is controlled to operate by the sum of the second set air speed and the air speed correction value in the next sampling period.
As shown in steps S401 to S404 in fig. 4, if the distance belongs to the third distance setting interval, it is determined whether the real-time air supply temperature difference is greater than or equal to the third temperature difference setting value. And if the real-time air supply temperature difference is larger than or equal to a third temperature difference set value, generating a corresponding frequency correction value and an air speed correction value in each sampling period, starting to control the compressor to operate by the sum of the operating frequency and the frequency correction value in the next sampling period, and controlling the indoor fan to operate by the sum of the third set air speed and the air speed correction value.
Wherein, the first temperature difference set value, the second temperature difference set value and the third temperature difference set value are sequentially increased. At relatively large distances, wind speed and frequency are allowed to adjust to a wide range.
The wind speed correction value in each sampling period is preferably generated by generating the sampling period while simultaneously generating the code ordinal number of the sampling period, and the wind speed correction value in each sampling period is a product of the wind speed correction factor and the code ordinal number of the corresponding sampling period. Preferably, the wind speed correction value is negative.
The frequency correction value in each sampling period is preferably generated by generating the coding ordinal number of the sampling period at the same time as the sampling period, and the frequency correction value in each sampling period is a product of the frequency correction factor and the coding ordinal number of the corresponding sampling period. Preferably, the frequency correction value is negative.
The sampling period is preferably in seconds.
According to the air conditioner control method based on the temperature and the cold feeling disclosed by the embodiment, when a person feels hot in the refrigeration mode, the frequency and the wind speed of the compressor are accurately adjusted according to the distance between the heat source and the air conditioner, and the phenomenon of overshoot is avoided.
The invention also discloses an air conditioner, which adopts the air conditioner control method based on the temperature and the cold feeling as disclosed in any one of the embodiments. The detailed description of the air conditioner control method refers to any one of the above embodiments and the detailed description of the drawings in the specification, and is not repeated herein. The air conditioner adopting the air conditioner control method can achieve the same technical effect.
It should be noted that any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and that the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having appropriate combinational logic gates, Programmable Gate Arrays (PGAs), Field Programmable Gate Arrays (FPGAs), and the like, may be implemented using any one or combination of techniques known in the art.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In the description herein, references to the description of "some embodiments" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A control method of an air conditioner based on temperature and cold feeling is characterized in that the air conditioner works in a cooling mode, and the control method comprises the following steps:
detecting subjective temperature and cold feeling of a heat source in an air-conditioning room in real time, and if the grade of the subjective temperature and cold feeling is not lower than the heat grade, executing the following control strategy:
detecting the distance between the heat source and the air conditioner in real time, and determining the wind speed corresponding to the distance according to the corresponding relation between the distance and the wind speed to be used as the real-time wind speed;
detecting the return air temperature of the air return inlet of the air conditioner and the outlet air temperature of the air outlet in real time, and calculating the temperature difference between the return air temperature and the outlet air temperature as the real-time air supply temperature difference; generating a temperature difference set value corresponding to the distance between the user and the air conditioner according to the distance between the user and the air conditioner; when the real-time air supply temperature difference is larger than or equal to a temperature difference set value, determining the operation frequency according to the relationship between the temperature difference set value and the frequency;
setting sampling periods, and generating a corresponding wind speed correction value and/or a frequency correction value according to the distance in each sampling period; and starting to control the compressor and the indoor fan to operate according to the sum of the real-time wind speed and the wind speed correction value generated in the last sampling period and/or the sum of the operation frequency and the frequency correction value in the next sampling period until the subjective temperature and cold feeling level is a comfortable level, and the compressor operates at a low frequency.
2. The air conditioner control method based on temperature and cold feeling of claim 1, characterized in that:
if the distance belongs to a first distance setting interval, determining a first set wind speed according to the corresponding relation between the distance and the wind speed, wherein the first set wind speed is a real-time wind speed;
if the distance belongs to a second distance setting interval, determining a second set wind speed according to the corresponding relation between the distance and the wind speed, wherein the second set wind speed is a real-time wind speed;
if the distance belongs to a third distance setting interval, determining a third set wind speed according to the corresponding relation between the distance and the wind speed, wherein the third set wind speed is a real-time wind speed;
the upper limit threshold values of the first distance setting interval, the second distance setting interval and the third distance setting interval are sequentially increased in size, and the first set wind speed, the second set wind speed and the third set wind speed are sequentially increased in size.
3. The air conditioner control method based on temperature and cold feeling of claim 2, characterized in that:
and if the distance belongs to a first distance setting interval, judging whether the real-time air supply temperature difference is larger than or equal to a first temperature difference set value, if the real-time air supply temperature difference is larger than or equal to the first temperature difference set value, generating a corresponding frequency correction value in each sampling period, and controlling the compressor to operate by the sum of the target frequency and the frequency correction value in the next sampling period.
4. The air conditioner control method based on temperature and cold feeling of claim 3, characterized in that:
and if the distance belongs to a second distance setting interval, judging whether the real-time air supply temperature difference is larger than or equal to a second temperature difference set value, if the real-time air supply temperature difference is larger than or equal to the second temperature difference set value, generating a corresponding air speed correction value in each sampling period, and starting to control the indoor fan to operate according to the sum of the second set air speed and the air speed correction value in the next sampling period.
5. The air conditioner control method based on temperature and cold feeling of claim 4, characterized in that;
and if the distance belongs to a third distance setting interval, judging whether the real-time air supply temperature difference is larger than or equal to a third temperature difference setting value, if the real-time air supply temperature difference is larger than or equal to the third temperature difference setting value, generating a corresponding frequency correction value and a corresponding air speed correction value in each sampling period, starting to control the compressor to operate by the sum of the target frequency and the frequency correction value in the next sampling period, and controlling the indoor fan to operate by the sum of the third set air speed and the third set air speed correction value.
6. The method as claimed in claim 5, wherein the first temperature difference set value, the second temperature difference set value and the third temperature difference set value are sequentially increased.
7. The method as claimed in claim 6, wherein the coding ordinal number of the sampling period is set, the wind speed correction value in each sampling period is a product of a wind speed correction factor and the coding ordinal number of the corresponding sampling period, and the frequency correction value in each sampling period is a product of a frequency correction factor and the coding ordinal number of the corresponding sampling period, wherein the coding ordinal number of the first sampling period is 0.
8. The method of claim 7, wherein the first distance setting section is (0, 1 m), the second distance setting section is (1, 2 m), and the third distance setting section is (2, 3 m).
9. The method as claimed in claim 8, wherein the first temperature difference setting value is 10 degrees celsius, the second temperature difference setting value is 12 degrees celsius, and the third temperature difference setting value is 13 degrees celsius.
10. An air conditioner characterized by employing the air conditioner control method as claimed in any one of claims 1 to 9.
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| CN201810077978.6A CN108361926B (en) | 2018-01-26 | 2018-01-26 | Air conditioner control method based on temperature and cold feeling and air conditioner |
| PCT/CN2019/073217 WO2019144940A1 (en) | 2018-01-26 | 2019-01-25 | Warm/cool sensation-based air conditioner control method and air conditioner |
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| CN201810077978.6A CN108361926B (en) | 2018-01-26 | 2018-01-26 | Air conditioner control method based on temperature and cold feeling and air conditioner |
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| CN108361926B (en) * | 2018-01-26 | 2020-02-04 | 青岛海尔空调器有限总公司 | Air conditioner control method based on temperature and cold feeling and air conditioner |
| CN109210718B (en) * | 2018-08-23 | 2021-07-23 | 重庆海尔空调器有限公司 | Method and device for controlling air conditioner compressor based on distance |
| CN109210719A (en) * | 2018-08-23 | 2019-01-15 | 青岛海尔空调器有限总公司 | Method based on interior machine blast velocity control cooler compressor |
| CN109210723B (en) * | 2018-08-23 | 2021-07-23 | 重庆海尔空调器有限公司 | Method for controlling air conditioner compressor based on distance |
| CN109210712B (en) * | 2018-08-23 | 2021-07-23 | 重庆海尔空调器有限公司 | Method for controlling compressor of air conditioner based on distance |
| CN109210724A (en) * | 2018-08-23 | 2019-01-15 | 青岛海尔空调器有限总公司 | Method based on interior machine blast velocity control compressor of air conditioner |
| CN111637602B (en) * | 2018-09-14 | 2021-07-16 | 海信家电集团股份有限公司 | Air conditioner control method and air conditioner |
| CN108917117B (en) * | 2018-09-26 | 2021-10-26 | 美的集团股份有限公司 | Air conditioner and control method and device thereof |
| CN109405213B (en) * | 2018-10-26 | 2021-01-08 | 美的集团武汉制冷设备有限公司 | Air conditioner, control method and device thereof and readable storage medium |
| CN111288559A (en) * | 2018-12-10 | 2020-06-16 | 同方人工环境有限公司 | Frequency conversion control method of direct refrigeration type magnetic suspension air conditioning unit |
| CN111698874B (en) * | 2020-05-08 | 2022-06-24 | 青岛理工大学 | Air conditioner heat dissipation method and device and air conditioner |
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